Flash MCU. BH66F5233 Datasheet

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BH66F5233 Datasheet
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Part BH66F5233
Description 24-Bit Delta Sigma A/D Flash MCU
Feature BH66F5233; 24-Bit Delta Sigma A/D Flash MCU BH66F5233 Revision: V1.10 Date: �Ju�l��y��26�,���2�0�1�7 BH66F5233.
Manufacture Holtek Semiconductor
Datasheet
Download BH66F5233 Datasheet




Holtek Semiconductor BH66F5233
24-Bit Delta Sigma A/D Flash MCU
BH66F5233
Revision: V1.10 Date: �Ju�l��y��26�,���2�0�1�7



Holtek Semiconductor BH66F5233
BH66F5233
24-Bit Delta Sigma A/D Flash MCU
Table of Contents
Features............................................................................................................. 6
CPU Features.......................................................................................................................... 6
Peripheral Features.................................................................................................................. 6
General Description.......................................................................................... 7
Block Diagram................................................................................................... 7
Pin Assignment................................................................................................. 8
Pin Description................................................................................................. 9
Absolute Maximum Ratings........................................................................... 10
D.C. Characteristics........................................................................................ 10
Operating Voltage Characteristics ......................................................................................... 10
Standby Current Characteristics.............................................................................................11
Operating Current Characteristics...........................................................................................11
A.C. Characteristics........................................................................................ 12
High Speed Internal Oscillator – HIRC – Frequency Accuracy.............................................. 12
Low Speed Internal Oscillator Characteristics – LIRC........................................................... 12
Operating Frequency Characteristic Curves.......................................................................... 13
System Start Up Time Characteristics .................................................................................. 13
Input/Output Characteristics......................................................................... 14
Memory Characteristics................................................................................. 15
LDO+PGA+ADC+VCM Electrical Characteristics........................................ 15
LVR/LVD Electrical Characteristics............................................................... 17
Power-on Reset Characteristics.................................................................... 18
System Architecture....................................................................................... 19
Clocking and Pipelining......................................................................................................... 19
Program Counter.................................................................................................................... 20
Stack...................................................................................................................................... 21
Arithmetic and Logic Unit – ALU............................................................................................ 21
Flash Program Memory.................................................................................. 22
Structure................................................................................................................................. 22
Special Vectors...................................................................................................................... 22
Look-up Table......................................................................................................................... 22
Table Program Example......................................................................................................... 23
In Circuit Programming – ICP................................................................................................ 24
On-Chip Debug Support – OCDS.......................................................................................... 25
Data Memory................................................................................................... 26
Structure................................................................................................................................. 26
General Purpose Data Memory............................................................................................. 26
Special Purpose Data Memory.............................................................................................. 27
Rev. 1.10
2 July 26, 2017



Holtek Semiconductor BH66F5233
BH66F5233
24-Bit Delta Sigma A/D Flash MCU
Special Function Register Description......................................................... 28
Indirect Addressing Registers – IAR0, IAR1.......................................................................... 28
Memory Pointers – MP0, MP1............................................................................................... 28
Bank Pointer – BP.................................................................................................................. 29
Accumulator – ACC................................................................................................................ 29
Program Counter Low Register – PCL................................................................................... 29
Look-up Table Registers – TBLP, TBHP, TBLH...................................................................... 29
Status Register – STATUS..................................................................................................... 30
EEPROM Data Memory................................................................................... 32
EEPROM Data Memory Structure......................................................................................... 32
EEPROM Registers............................................................................................................... 32
Reading Data from the EEPROM.......................................................................................... 34
Writing Data to the EEPROM................................................................................................. 34
Write Protection...................................................................................................................... 34
EEPROM Interrupt................................................................................................................. 34
Programming Considerations................................................................................................. 35
Oscillators....................................................................................................... 36
Oscillator Overview................................................................................................................ 36
System Clock Configurations................................................................................................. 36
Internal High Speed RC Oscillator – HIRC............................................................................ 37
Internal 32kHz Oscillator – LIRC............................................................................................ 37
Operating Modes and System Clocks.......................................................... 37
System Clocks....................................................................................................................... 37
System Operation Modes....................................................................................................... 38
Control Registers................................................................................................................... 40
Operating Mode Switching..................................................................................................... 41
Standby Current Considerations............................................................................................ 45
Wake-up................................................................................................................................. 45
Watchdog Timer.............................................................................................. 46
Watchdog Timer Clock Source............................................................................................... 46
Watchdog Timer Control Register.......................................................................................... 46
Watchdog Timer Operation.................................................................................................... 47
Reset and Initialisation................................................................................... 48
Reset Functions..................................................................................................................... 48
Reset Initial Conditions.......................................................................................................... 51
Input/Output Ports.......................................................................................... 54
Pull-high Resistors................................................................................................................. 54
Port A Wake-up...................................................................................................................... 55
I/O Port Control Registers...................................................................................................... 55
Source Current Selection....................................................................................................... 56
Pin-shared Functions............................................................................................................. 57
I/O Pin Structures................................................................................................................... 59
Programming Considerations................................................................................................. 59
Rev. 1.10
3 July 26, 2017







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